Thomas Passin <li...@tompassin.net> wrote:
> On 12/5/2023 11:50 AM, MRAB via Python-list wrote:
> > On 2023-12-05 14:37, Chris Green via Python-list wrote:
> >> Is there a neat, pythonic way to store values which are 'sometimes'
> >> changed?
> >>
> >> My particular case at the moment is calibration values for ADC inputs
> >> which are set by running a calibration program and used by lots of
> >> programs which display the values or do calculations with them.
> >>
> >> From the program readability point of view it would be good to have a
> >> Python module with the values in it but using a Python program to
> >> write/update a Python module sounds a bit odd somehow.
> >>
> >> I could simply write the values to a file (or a database) and I
> >> suspect that this may be the best answer but it does make retrieving
> >> the values different from getting all other (nearly) constant values.
> >>
> >> Are there any Python modules aimed specifically at this sort of
> >> requirement?
> >>
> > Some kind of key/value store sounds like the correct solution. I
> > wouldn't go as far a database - that's overkill for a few calibration
> > values.
> >
> > I might suggest TOML, except that Python's tomllib (Python 3.11+) is
> > read-only!
> >
> > Personally, I'd go for lines of:
> >
> > key1: value1
> > key2: value2
> >
> > Simple to read, simple to write.
>
> Just go with an .ini file. Simple, well-supported by the standard
> library. And it gives you key/value pairs.
>
My requirement is *slightly* more complex than just key value pairs,
it has one level of hierarchy, e.g.:-
KEY1:
a: v1
c: v3
d: v4
KEY2:
a: v7
b: v5
d: v6
Different numbers of value pairs under each KEY.
--
Chris Green
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